KR100369527B1 - Steering angle sensor for vehicle - Google Patents

Steering angle sensor for vehicle Download PDF

Info

Publication number
KR100369527B1
KR100369527B1 KR1019970077569A KR19970077569A KR100369527B1 KR 100369527 B1 KR100369527 B1 KR 100369527B1 KR 1019970077569 A KR1019970077569 A KR 1019970077569A KR 19970077569 A KR19970077569 A KR 19970077569A KR 100369527 B1 KR100369527 B1 KR 100369527B1
Authority
KR
South Korea
Prior art keywords
steering
vehicle
steering angle
spiral
angle sensor
Prior art date
Application number
KR1019970077569A
Other languages
Korean (ko)
Other versions
KR19990057516A (en
Inventor
오준남
Original Assignee
주식회사 만도
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1019970077569A priority Critical patent/KR100369527B1/en
Publication of KR19990057516A publication Critical patent/KR19990057516A/en
Application granted granted Critical
Publication of KR100369527B1 publication Critical patent/KR100369527B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/021—Determination of steering angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: A steering angle sensor for a vehicle is provided to exactly measure the angle of steering according to the rotation of a steering system by using spiral resistance elements. CONSTITUTION: A steering angle sensor for a vehicle is composed of a spiral groove formed to an outer peripheral surface of a cylindrical steering shaft of a steering system(1) adjusting the steering of the vehicle and attached with spiral resistances(2); and a slide(3) outputting the resistance value of a variable resistance by a slide contact(4) being contacted according to positions contacted with the spiral resistances changed to the rotation of the steering system by installing the slide contact contacting with the spiral resistances and the variable resistance and by being driven by the rotary power of the steering system.

Description

차량용 조향각 센서Automotive steering angle sensor

본 발명은 나선형 저항소자를 이용하여 조향장치의 회전에 따른 조향각을 정확하게 측정할 수 있도록 한 차량용 조향각 센서에 관한 것이다.The present invention relates to a steering angle sensor for a vehicle that can accurately measure the steering angle according to the rotation of the steering apparatus by using a spiral resistance element.

일반적으로 조향각 센서는 차량의 조향장치, 즉 핸들이 얼마만큼 돌아갔는지를 측정하기 위한 센서로, 이 센서를 통해 측정하는 핸들의 회전 각도, 즉 조향각은 운전자가 핸들을 돌림에 따라 변화하는 차량의 자세를 인식하기 위해 무엇보다 필요하다.In general, the steering angle sensor is a vehicle steering device, that is, a sensor for measuring how much the steering wheel is turned. The rotation angle of the steering wheel measured by the sensor, that is, the steering angle, changes the attitude of the vehicle as the driver turns the steering wheel. More than anything to recognize it.

이에 따라, 종래에는 차량의 조향장치에 직선 형태의 저항소자를 부착하여 조향장치의 회전에 따른 저항치를 측정함으로써 조향각의 절대치를 검출하였다.Accordingly, conventionally, the absolute value of the steering angle was detected by attaching a linear resistance element to the steering device of the vehicle and measuring the resistance value according to the rotation of the steering device.

그러나, 종래의 조향각 센서는 직선형 저항소자를 조향장치의 원통축에 부착함에 따라 도 1에 도시된 그래프와 같이 조향장치가 360°회전하는 경우까지만 최대 저항치를 측정하므로 조향장치를 계속해서 회전시키는 경우에는 최소의 저항치에서부터 다시 최대의 저항치가 반복 검출되게 된다.However, since the conventional steering angle sensor attaches a linear resistance element to the cylindrical shaft of the steering apparatus, the maximum resistance value is measured only when the steering apparatus rotates 360 ° as shown in the graph shown in FIG. The maximum resistance value is repeatedly detected from the minimum resistance value again.

이와 같이, 조향장치의 반복 회전에 따라 검출되는 저항값이 동일함에 따라 정확한 조향각이 검출되지 않아 차량의 자세를 판단함에 있어서 부정확하게 인식함은 물론 조향각 검출을 위한 신호 처리 과정이 복잡한 문제점이 있었다.As such, since the resistance value detected according to the repeated rotation of the steering apparatus is the same, an accurate steering angle is not detected, thereby incorrectly recognizing the attitude of the vehicle, and a signal processing process for detecting the steering angle has a complicated problem.

본 발명은 상기와 같은 문제점을 해걸하기 위해 안출한 것으로서, 그 목적은 조향장치의 원통축에 나선형 저항소자를 부착하여 조향장치의 회전이 반복되어도 서로 다른 값의 정확한 저항치를 검출할 수 있어 신호 처리가 간단해지고 정확한 조향각을 검출할 수 있도록 한 차량용 조향각 센서를 제공하는 데에 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its object is to attach a spiral resistance element to the cylindrical shaft of the steering device so that accurate resistance values of different values can be detected even if the steering device is rotated repeatedly. It is to provide a steering angle sensor for a vehicle to simplify the detection and accurate steering angle.

이러한 목적을 달성하기 위한 본 발명의 차량용 조향각 센서는 차량의 조향장치의 원통형 조향축에 나선형 저항소자를 부착할 수 있도록 나선형 혹은 형성한 후, 이 나선형 홈에 부착된 저항과 접점되는 접점소자를 갖는 슬라이드를 구비하여, 조향장치의 회전에 따라 상기 나선형 저항과 접점되는 슬라이드의 접점이 변화함으로써 슬라이드의 가변저항값에 따른 조향각의 절대치를 검출할 수 있도록 함을 특징으로 한다.The steering angle sensor for a vehicle of the present invention for achieving the above object has a contact element contacted with a resistor attached to the spiral groove after the spiral or formed so as to attach a spiral resistance element to the cylindrical steering shaft of the steering device of the vehicle. It is characterized in that it is provided with a slide to detect the absolute value of the steering angle according to the variable resistance value of the slide by changing the contact of the slide in contact with the spiral resistance in accordance with the rotation of the steering device.

도 1은 종래 조향각 센서에 의해 검출되는 저항과 조향각의 상관그래프,1 is a correlation graph of a resistance and a steering angle detected by a conventional steering angle sensor,

도 2는 본 발명에 의한 차량용 조향각 센서가 조향장치에 구현된 상태도,2 is a state diagram in which a steering angle sensor for a vehicle according to the present invention is implemented in a steering apparatus;

도 3은 본 발명에 의한 차량용 조향각 센서의 단면도.3 is a cross-sectional view of a steering angle sensor for a vehicle according to the present invention.

도 4는 본 발명에 의한 조향각 센서에 의해 검출되는 저항과 조향각의 상관그래프.Figure 4 is a correlation graph of the resistance and steering angle detected by the steering angle sensor according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 조향장치 2 : 나선형 저항1: steering device 2: spiral resistance

3 : 슬라이드 4 : 슬라이드 접점3: slide 4: slide contact

5 : 가변저항5: variable resistor

이하, 첨부된 도면을 참조하여 본 발명에 의한 차량용 조향각 센서의 구조 및 동작을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the structure and operation of the steering angle sensor for a vehicle according to the present invention.

도 2는 본 발명에 의한 차량용 조향각 센서가 조향장치에 구현된 상태도로서, 운전자가 수동조작하여 차량의 자세를 조정하도록 하는 조향장치(1)의 원통형 조향축의 외주에 나선홈이 형성되어 나선형 저항(2)이 부착되어 있으며, 상기 나선형 저항(2)과 접점하는 슬라이드 접점(4)을 구비하여 상기 조향장치(1)의 회전력에 의해 구동되면서 상기 조향장치(1)의 회전에 따라 변화되는 나선형 저항(2)과의 접점 위치에 따른 저항치를 출력하는 슬라이드(Slide)(3)가 구성되어 있다.FIG. 2 is a state diagram in which a steering angle sensor for a vehicle according to the present invention is implemented in a steering apparatus, wherein a spiral groove is formed on the outer circumference of a cylindrical steering shaft of a steering apparatus 1 to allow a driver to manually adjust the attitude of the vehicle. 2) is attached, provided with a slide contact (4) in contact with the helical resistor (2) is driven by the rotational force of the steering device (1) while the helical resistance changes according to the rotation of the steering device (1) The slide 3 which outputs the resistance value according to the contact position with (2) is comprised.

도 3은 상기 도 2의 조향각 센서의 단면도로서, 조향장치(1)가 회전하면서 슬라이드(3)의 슬라이드 접점(4)이 접점되는 나선형 저항(2)의 접점위치가 변화하게 된다.3 is a cross-sectional view of the steering angle sensor of FIG. 2, wherein the contact position of the spiral resistor 2 to which the slide contact 4 of the slide 3 is contacted while the steering apparatus 1 rotates.

이와 동시에 슬라이드 접점(4)이 접점되는 조향각을 검출하기 위한 상기 슬라이드(3)내의 가변저항(5)의 접점위치도 함께 변화하게 된다.At the same time, the contact position of the variable resistor 5 in the slide 3 for detecting the steering angle at which the slide contact 4 is in contact also changes.

한편, 가변저항(5)에는 전원(도시되지 않음)이 공급되고 슬라이드 접점(4)에는 조향각의 절대치와 비례하여 검출되는 저항치를 입력하는 마이컴과 같은 장치가 있어, 슬라이드 접점(4)이 접점되는 가변저항(5)으로 전원이 공급되어 마이컴에서는 가변저항(5)이 저항값에 따른 전압성분을 입력받게 된다.On the other hand, the variable resistor 5 is supplied with power (not shown), and the slide contact 4 has a device such as a microcomputer for inputting a resistance value detected in proportion to the absolute value of the steering angle, whereby the slide contact 4 is contacted. Power is supplied to the variable resistor 5 so that the microcomputer receives the voltage component according to the resistance value in the microcomputer.

즉, 상기 전압성분은 조향장치(1)의 회전에 따라 발생된 값으로 조향장치(1)의 조향각을 검출할 수 있게 된다.That is, the voltage component can detect the steering angle of the steering apparatus 1 with the value generated according to the rotation of the steering apparatus 1.

이와 같이 본 발명에서는 도 4에 도시된 바와 같이 조향장치의 회전에 따라 조향각의 절대치와 저항값이 비례하여 변하게 된다.As such, in the present invention, as shown in FIG. 4, the absolute value of the steering angle and the resistance value change in proportion to the rotation of the steering apparatus.

이상, 상기에서 설명한 바와 같이 본 발명은 나선형 저항소자를 이용함으로써 정확한 조향각을 검출할 수 있으며, 신호 처리 또한 간단해지는 효과가 있다.As described above, the present invention can detect the correct steering angle by using the spiral resistance element, and also has the effect of simplifying the signal processing.

Claims (1)

차량의 조향을 조정하는 조향장치(1)의 원통형 조향축의 외주에 나선홈이 형성되고, 상기 조향축 일측에 가변저항(5)과 접점하는 슬라이드 접점(4)을 구비하여 상기 조향장치(1)의 회전력에 의해 구동되어 상기 조향장치(1)의 회전에 따라 변화되는 슬라이드 접점(4)이 접점되는 가변저항(5)의 저항치를 출력하는 슬라이드(3)로 구성되는 것에 있어서,The spiral groove is formed on the outer circumference of the cylindrical steering shaft of the steering apparatus 1 for adjusting the steering of the vehicle, and the steering apparatus 1 is provided with a slide contact 4 contacting the variable resistor 5 on one side of the steering shaft. In the configuration is composed of a slide (3) for outputting the resistance value of the variable resistor (5) which is driven by the rotational force of the slide contact (4) which is changed in accordance with the rotation of the steering device (1), 상기 나선홈에 슬라이드접점(4)과 접하는 나선형저항(2)이 설치되는 것을 특징으로 하는 차량용 조향각 센서.The steering angle sensor for a vehicle, characterized in that the spiral resistance (2) is provided in contact with the slide contact (4) in the spiral groove.
KR1019970077569A 1997-12-30 1997-12-30 Steering angle sensor for vehicle KR100369527B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970077569A KR100369527B1 (en) 1997-12-30 1997-12-30 Steering angle sensor for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970077569A KR100369527B1 (en) 1997-12-30 1997-12-30 Steering angle sensor for vehicle

Publications (2)

Publication Number Publication Date
KR19990057516A KR19990057516A (en) 1999-07-15
KR100369527B1 true KR100369527B1 (en) 2003-03-31

Family

ID=37416371

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970077569A KR100369527B1 (en) 1997-12-30 1997-12-30 Steering angle sensor for vehicle

Country Status (1)

Country Link
KR (1) KR100369527B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102098346B1 (en) * 2014-10-21 2020-04-08 현대자동차주식회사 Motor driving device for a vehicle
CN110723210B (en) * 2019-10-31 2022-06-07 重庆长安汽车股份有限公司 Steering wheel corner recognition device and automobile

Also Published As

Publication number Publication date
KR19990057516A (en) 1999-07-15

Similar Documents

Publication Publication Date Title
EP1783036B1 (en) Rotational angle detector
US7677114B2 (en) Torque sensor for electric power steering system
US6400142B1 (en) Steering wheel position sensor
US6909282B2 (en) Rotation angle detector
US4856607A (en) Apparatus for automatically setting steering center for use in power steering apparatus
US5920198A (en) Capacitance-type displacement measuring device
US6730864B2 (en) Sensor arrangement for determining selector drum position
US20040129091A1 (en) Absolute angle sensor with a magnetic encoder having non-even spaced reference pulses
JP2001174289A (en) Detector for angular rotation
US6704665B2 (en) Torque sensor abnormality detecting device
EP1526362B1 (en) Bearing assembly with built-in absolute encoder
US6912791B2 (en) Rotation angle detector
WO2006087627A1 (en) Monitoring device
KR100369527B1 (en) Steering angle sensor for vehicle
JPH1151607A (en) Steering angle detector
US10352798B2 (en) Angular rotation sensor system
US20070289395A1 (en) Device to determine an absolute rotation angle of a rotary shaft
US6205866B1 (en) Sensor arrangement for detecting changes in angle
JP2003214845A (en) Device for determining steering angle of car steering wheel
JPH07323709A (en) Tire inflation pressure detection device
KR100231572B1 (en) Sensor for detecting angle of steering shaft
JP2602908B2 (en) Rotation angle detector
KR100459022B1 (en) Apparatus for confirming steering wheel angle of a vehicle
KR100221646B1 (en) Steering angle detecting apparatus of vehicles
JPH05273289A (en) Sliding resistance-system linear characteristic sensor

Legal Events

Date Code Title Description
N231 Notification of change of applicant
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130102

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20131223

Year of fee payment: 12

LAPS Lapse due to unpaid annual fee